<template>
	<view class="">
		

	<view class="search-box">
		<uni-search-bar :focus="true"  @input="input" cancelButton="none"  :radius="100" bgColor="#ffffff"></uni-search-bar>
	</view>
	<view class="sugg-list" v-if="searchResults.length !== 0">
		<view class="sugg-item" v-for="(item,i) in searchResults" :key="i"  @click="gotoDetail(item.goods_id)">
			<view class="goods-name">
				{{item.goods_name}}
			</view>
			<uni-icons type="arrowright" size="16"></uni-icons>
		</view>
	</view>
	<!-- 搜索历史 -->
	<view class="history-box" v-else>
	  <!-- 标题区域 -->
	  <view class="history-title">
	    <text>搜索历史</text>
	    <uni-icons type="trash" size="17" @click="cleanHistory"></uni-icons>
	  </view>
	  <!-- 列表区域 -->
	  <view class="history-list">
	    <uni-tag :text="item" v-for="(item, i) in history" :key="i" @click="gotoGoodsList(item)"></uni-tag>
	  </view>
	</view>
		</view>
</template>

<script>
	export default {
		data() {
			return {
				show:true,
				showSync:true,
				timer:null,
				kw:'',
				 searchResults: [],
				 historyList: ['a', 'app', 'apple']
			};
		},
		methods:{
			input(e){
				clearTimeout(this.timer)
				this.timer = setTimeout(() =>{
					this.kw = e 
					this.getSearchList()
				},500)
				 
			},
			async getSearchList(){
				if (this.kw === ''){
					this.searchResults = []
					return
				}
				const { data: res } = await uni.$http.get('/api/public/v1/goods/qsearch',{query:this.kw})
				if(res.meta.status !==200) return uni.$showMsg()
				this.searchResults = res.message
				console.log(this.searchResults)
				this.saveSearchHistory()
			},
			
			gotoDetail(goods_id) {
			  uni.navigateTo({
			    // 指定详情页面的 URL 地址，并传递 goods_id 参数
			    url: '/subpkg/goods_detail/goods_detail?goods_id=' + goods_id
			  })
			},
			 saveSearchHistory() {
			    // 2.1 直接把搜索关键词 push 到 historyList 数组中
			    // this.historyList.push(this.kw)
				const set = new Set(this.historyList)
				set.delete(this.kw)
				set.add(this.kw)
				this.historyList = Array.from(set)
				uni.setStorageSync('kw', JSON.stringify(this.historyList))
			  },
			  // 清空搜索历史记录
			  cleanHistory() {
			    // 清空 data 中保存的搜索历史
			    this.historyList = []
			    // 清空本地存储中记录的搜索历史
			    uni.setStorageSync('kw', '[]')
			  },
			  // 点击跳转到商品列表页面
			  gotoGoodsList(kw) {
			    uni.navigateTo({
			      url: '/subpkg/goods_list/goods_list?query=' + kw
			    })
			  }
		},
		computed:{
			history(){
				return [...this.historyList].reverse()
			}
		}
	}
</script>

<style lang="scss">
.search-box{
	background-color: #bc0000;
	position: sticky;
	z-index: 100;
}
.sugg-list{
	margin:10px;
	font-size: 12px;
	background-color: #fff;
	
	.sugg-item{
		display: flex;
		justify-content: space-between;
	 align-items: center;
	 margin-bottom: 10px;
	 .goods-name{
		 white-space: nowrap;
		 overflow: hidden;
		 text-overflow: ellipsis;
		 
	 }
	}
}
.history-box {
  padding: 0 5px;

  .history-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 40px;
    font-size: 13px;
    border-bottom: 1px solid #efefef;
  }

  .history-list {
    display: flex;
    flex-wrap: wrap;

    .uni-tag {
      margin-top: 5px;
      margin-right: 5px;
    }
  }
}
</style>
